A pressure accumulator includes a cylindrical body made of metal and configured to vaporize and store a liquefied gas in a storage space in the cylindrical body, a lid body having a through hole that allows a pipe to penetrate through the through hole, and being configured to close an opening end portion of the cylindrical body with a gap between the lid body and an inner peripheral surface of the cylindrical body, a sealing structure portion between an outer peripheral portion of the lid body and an inner peripheral portion of the cylindrical body, and a fixing part at the opening end portion of the cylindrical body, an outer peripheral surface of the fixing part being screw fastened to the inner peripheral surface of the cylindrical body to support and fix the lid body from an outer side of the lid body.

The present invention relates to a natural gas hydrate tank container loading system for transporting natural gas hydrate, and the present invention provides a natural gas hydrate tank container loading system which enables automated connection of an electric power line and a boil-off pipe, and may automatically connect an electric power line and automatically connect the pipe by simultaneously stacking respective natural gas hydrate tank containers, in order to solve problems of a transportation method using the existing natural gas hydrate tank containers in the related art in that an operation of connecting an electric power line to a refrigerator for minimizing the occurrence of boil-off gas and maintaining a phase equilibrium condition in the tank containers and an operation of connecting the pipe for discharging the boil-off gas need to be manually and individually performed for long-distance transportation of a large amount of natural gas hydrate by using a ship, which causes an inconvenience.

A liquefied light hydrocarbon (LLH) fuel system for a hybrid vehicle is disclosed. The fuel system comprises an insulated fuel tank having a buffer space, a fuel control valve, wherein an outlet to the fuel tank connects to a first end of the fuel line, wherein an inlet of the fuel control valve connects to a second end of the fuel line and wherein an outlet of the fuel control valve is adapted to connect to a fuel inlet to an internal combustion engine; and a tank heating system comprising: a heating element, wherein the heating element is disposed adjacent to or within the fuel tank; a heating power control system, wherein the heating power control system controls the amount of heat produced by the heating element to vaporize the LLH fuel. Methods of using the fuel system are also disclosed.

The invention relates to a liquefied-fluid storage tank including a storage wall the inner surface of which defines a storage volume for liquefied fluid, the tank including an exchanger for cooling the fluid contained in the tank in particular to condense vapors of said fluid. The invention is characterized in that the cooling exchanger includes a body of metal, in particular aluminum, in which at least one pipe of a coolant circuit is integrated in order to cool said body and in that the body is in contact with and attached to the outer surface of the storage wall.

A method optimizes the cryogenic pressure tank fill level which can be achieved during a refill in a motor vehicle. A heating device for heating a gas in the pressure tank has at least two modes, namely a regular operating mode, in which the heating device heats the gas in the pressure tank such that a specified pressure of the gas in the pressure tank is reached, and a continuous operation mode in which the heating device constantly heats the gas in the pressure tank such that the pressure of the gas in the pressure tank rises above the specified pressure. The method has the following steps: detecting the density of the gas in the pressure tank; comparing the detected density of the gas in the pressure tank with a specified density value; and if during the comparison it is determined that the detected density falls below the specified density value, either operating the heating device in the regular operating mode or switching the heating device from the regular operating mode to the continuous operation mode, in particular on the basis of a specified path to the destination of the motor vehicle and the service stations provided on the specified path to the destination for refilling the pressure tank with gas.

A liquefied light hydrocarbon (LLH) fuel system for a hybrid vehicle is disclosed. The fuel system comprises an insulated fuel tank having a buffer space, a fuel control valve, wherein an outlet to the fuel tank connects to a first end of the fuel line, wherein an inlet of the fuel control valve connects to a second end of the fuel line and wherein an outlet of the fuel control valve is adapted to connect to a fuel inlet to an internal combustion engine; and a tank heating system comprising: a heating element, wherein the heating element is disposed adjacent to or within the fuel tank; a heating power control system, wherein the heating power control system controls the amount of heat produced by the heating element to vaporize the LLH fuel. Methods of using the fuel system are also disclosed.

The aim of the invention is to enable air conditioning systems of vehicles (F) to be filled with refrigerant (K) in a simpler and more efficient manner. This is achieved by a filling device having a receiving region for receiving a pressure container filled with the refrigerant (K), a valve unit, being connected to an outlet of the pressure container, for controlling the quantity of the refrigerant (K) being supplied to the vehicle (F), and a heating device (9) for heating the pressure container, wherein the heating device has at least one infrared heating unit to heat the pressure container without any contact.

A cryogenic container and a heat exchanger for heating cryogenic fluid removed from the cryogenic container, the heat exchanger including a first heat exchanger tube for heating the cryogenic fluid, with a removal line connecting the heat exchanger tube to the cryogenic container, the heat exchanger tube being surrounded by a jacket and the heat exchanger having a medium inlet and a medium outlet for heat exchange medium to flush a heat exchange medium introduced into the medium inlet and removed from the medium outlet around the space between the jacket and the heat exchanger tube, the heat exchanger including a single-piece connection block with a first and a second outer opening and an inner opening, the heat exchanger tube being connected directly to the inner opening of the connection block and a first end of the jacket being attached to the connection block in a fluid-tight manner.

A Reduced Boil-off Thermal Conditioning System (RBTC System) for transferring liquid natural gas (LNG) from a LNG supply tank to a LNG storage tank with reduced boil-off is disclosed. The RBTC System includes the LNG storage tank, a cryogenic fluid tank within the LNG supply tank, and a compressor. The LNG storage tank includes a first and second LNG pipe. The cryogenic fluid tank is configured to store a cryogenic fluid within the cryogenic fluid tank and the first and second LNG pipe are in fluid communication with to the cryogenic fluid tank. The first LNG pipe is in fluid communication with compressor.

An apparatus includes a Dewar having an endcap. The apparatus also includes a heat sink and a thermal interface material configured to thermally couple the endcap of the Dewar to the heat sink. The thermal interface material includes an amorphous pliable material that is configured to transfer thermal energy between the endcap of the Dewar and the heat sink without structurally coupling the Dewar to the heat sink. A thermal shoe may be positioned between the thermal interface material and the heat sink, and the thermal shoe may be configured to hold the thermal interface material against the endcap. The thermal shoe may have (i) a smaller cross-sectional size in a portion of the thermal shoe contacting the thermal interface material and (ii) a larger cross-sectional size in a portion of the thermal shoe contacting the heat sink.